Hog-scraper



(No Model.) 2 Sheets-Sheet 1. G. A. LOWRY.

HUG SGRAPER.

No. 497,724. Patented May 16, 1893.

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2 Sheets-Sheet 2.

1. l (Nome G. A. LOWRY.

HUG SRAPER Patented May 16, 1893.

`more particularly pointed out in the claims.

UNTTE STATES PATENT OFFICE.

GEORGE A. LOVRY, OF CHICAGO, ILLINOIS.

HOG-SCRAPER.

SPECIFICATION forming part of Letters Patent No. 497.724, dated May 16, 1893.

Application filed January 21,1893.

To @ZZ whom 25 may concern.-

Be it known that I, GEORGE A. LoWEY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Im provements in Hog-Scrapers, of which the following is a specification.

My invention relates to improvements in hog scraping machines, and its object is to simplify said machines and make them more complete and eiective, and what is very important, render the parts of the machine, and the hog, more accessible in case of accident (such as the hog becoming unhooked while in the machine). This class of accidents happens very frequently from failure of the hooker-on to properly insert the hook, also from broken jaws, and as on machines commonly employed it is impossible for the operator to see when such an accident occurs, he continues to hook on hogs until notified from the other end of the machine that an empty hook has come through. The result is that several hogs are jammed into the machine and a good deal of damage is done, and as it takes considerable time to remove them, a corresponding loss in labor is caused, and not infrequently the burning of a part of the hogs in the scalding tub. My machine is specially designed to avoid this, for with it, should a hook become detached While a hog is in the machine, the machine is so compact that a considerable part of the hog will project at either end of the machine, where it can be readily seen, and is so easy of access that it can be speedily rehooked, or (if the jaw is broken) a shackle attached to a leg and removed Without stopping either themachine or the Work.

The invention consists in the construction substantially as hereinafter set forth, and

Like letters refer to the same parts in the several igures of the drawings, in which- Figure l, is a vertical longitudinal section of the machine. Fig. 2, is an inside end View of the base plate with Scrapers attached. Fig. 3, is a detail sectional view ot' the bracket and adjusting mechanism of a scraper showing the latter attached. Fig. 4, is a detail side view of the sprinkler. Fig. 5 illustrates a detail view of the scraper knife with the Serial No. 459,036. (No model.)

belt for securing it to the rod in section. Fig. 6 is a detail view of the dray-hook. Fig. 7 is an end View of the apron for discharging the hair from the machine.

The main frame of the machine is designated by the letter A and may be of any suitable construction and material adapted to support the operative parts, but I preferthat it shall be so arranged that it shall cause the hog to be dragged through the machine in an approximately horizontal position,and in the drawings the table A is shown so placed.

Properly mounted in the frame are two Wheels B, B, one or both of which may be sprockets, and which being driven by suitable power, carry and cause to move the feeding apron or chain C into which latter may be loosely attached one or more such hooks as are shown in Fig. 6 of the d rawings. As shown in Fig. 1 of the drawings, only one ofthe hooks is attached, but it is obvious that as many more as desirable may be employed. The hooks are composed of a number of parts, but as a Whole are designated by the letter D in the accompanying drawings. The hook is composed of a stein E, a hook proper F and intermediate links G forming a universal joint, so that the hook may move more freely in any direction. The hook proper is formed similar in shape to a tish hook, with a point bent back approximately parallel with the other arm of such hook, in which latter is formed an eye, and is connected by a swivel joint to one of the links beforeA mentioned. By such a construction the hook is caused to lie flatly against the under jaw bone of the hog and thus the pressure will be upon the whole point instead of entirely upon the bent portion of the hook. Furthermore the hook thus lying atly, will not force open the upper jaw and endanger its being caught by the Scrapers and broken. The stem of the-hook is pivoted to the apron by loose trunuions which have a vertically depending piece as shown at d Fig. 1 which when it strikes the inclined portion I of the table A', throws the said trunnions out of engagement with the feeding chain or apron. The apron drawing the animal passes through the base plate K to which are secured in a pivotal manner a number of Scrapers L, L, which are arranged so that their blades converge toward the center, but have a circular space of suiiicient ditrated in Figs. 3 and 5 of the drawings, by

which it will be seen that said scrapeis are each pivcted at one end to a bracket M', and bear against a cushioned set-screw, being pressed thereon by a coiled spring O, surrounding a bolt P which latter passes through a slot in the scraper arin, and is secured to the bracket or base plate. The bolt also goes through a V-shaped slot in the bracket, which gives it some freedom of motion as the scraper arm moves backward. The scraper arm is jo'iiied into the main portionand held there by a set screw c which enables the knives to he set so that they will properly fit the shape of a hog, which is not an absolute circle. This set screw also permits a variation to be made in the length of the arm by several inches, which is frequently required. pressure and position of the Scrapers are regulated by the set screws N, N. By pivoting the scraper arms to the base plate or brackets thereon and arranging the ysprings O and limiting screws N forward of such pivots or between the saine and the knives, simplicity and compactness are secured while maintainving an effective construction.

The scraper arms proper are preferably arranged in sockets in the base plate or brackets, and adjusted therein either radially of their axes, or longitudinally by a set screw c or lother equivalent device. Thus the position of such arms may be regulated according to the averagesiie and shape or contour bf the animal. The free end of each scraper is provided with a knife orblade R, which has an open slot, as is shown in Fig. 5 of the drawings, through which, and through the end of the scraper arm passes a clamping screw b best shown in Fig. 3, whereby the knives maybe readily removed for sharpening or other purposes by merelyloosening the clamping screw.

The hot water sprinkler S may be placed immediately under the feeding apron, and the water forced up through the pipe T and perforated sprinkling ring M, the apertures of which are preferably so placed as to throw the hot fluid upon the animal while it is passing through the Scrapers. The tank tube T is provided with an imperforate ledge V extending nearly across its length and gently incliniii g toward the bottom of such tank, and it is also provided with an outwardly inclining trough or spout X. A discharging or delivery apron Z is located just above the imperforate ledge-in the tank and is provided lwith a series Gf combs which passing up the ledge rake the waste hair to the discharge spout X while at the saine time permitting the water to pass through the teeth of such combs downward and into the tank.

Generally speaking the operation of the de- The vice may be thus described. The animal is dipped into the scalding trough, (not shown, but arranged in the usual manner t0 the left of the feeding apron,) and is then lifted so as to be engaged by the feeding apron, the hook inserted in the lower jaw, and the animal fed through the aperture between the scraping blades, whereby the hair is scraped from the skin of such animal. At this pointhot water forced up from the tank S through the sprinkler M is thrown upon such animal, and washes off loose hair which, together with the water, falls to the partition V, the water draining through the comb blades of the delivery apron, and the hair being caught by such blades and discharged by way of the spout X.

It is obvious that many 'modifications or variations may be inade'in the details of the construction shown and described Without departing from the principle of 'my invention and I do not therefore wish to 'confin'einyself to said exact construction. l

Having thus described my invention, 'what I clai in a's new, and desire tos'ecu're by Letters Patent of the United Stat'es,is;

l. In a hog scraper, the combination vof a horizontally arranged feeding mechanism, with a single base plate carrying a series of converging scraper arms through which the feeding mechanism travels,`siibstantially as and for the purpose set forth. 4 ,f

2. In a hog 'scraper the combination of a feeding mechanism with a 'series bf pivoted Scrapers, springs bearing-upon vthe same,`and an adjustable limiting screw; substantially as and for the purpcse set forth.

3. In a hog scraper the combination of a feeding mechanism and scrapingdevicesga tank, an imperfo'rati'e ledge extending partly over 'such tank and 'declining thereto, and a discharging device traversing such ledge; and a sprinkling device, substantially as and for the purpose set forth.

4. In a hog scraper thecombinfa'ti'on of a feeding mechanism, scraping devices, 'a tank thereunder, an imperforate ledge extending partly over such tank and inclining downward in relation thereto, and 'a discharging device provided with rakes or ccmbs for traversing said ledge; and a sprinkling device, substantially 'as and for the purpose set forth. 5. In a hcg scraper the combination of a feeding mechanism, scraping devices, a tank provided with a downwardly inclined imperforate ledge, and an 'apron traversing such ledge and provided with a series of wings in the forin of combs or fakes; and a sprinkling device, substantially as and for the purpose set forth. v

6. Ina hog scraper, a drawing hook having its peint turned back almost parallel-with its other arm; substantially as and for the purpose set forth.

7. In a hog scraper, pivete'd scraper arms, and a pressure spring and limiting d'evic'e forward of the pivot of each of such arms; substantially as and for the purpose set forth.

IOCi

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, 8. In a hog scraper the combination with l and in a direction longitudinally of then1- the feeding mechanism, of scraper arms, and selves by means of sockets and set screws; l mechanism for adjusting the same both in a substantially as and for the purpose set forth.

rotatory direction, and in a direction longi- In testimony whereof I have hereunto set 5 tudinally of themselves; substantially as and my hand in the presence of two Witnesses. for the purpose set forth. GEORGE A LOWRY 9. In a hog scraper the combination of feeding mechanism with a base plate and a In presence of r series of scraper arms pivoted thereto, and JAS. LAWRENCE GERRY,

fo made adjustable both in a rotator-y direction BENTON J. HALL. 

